Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method for keeping, by a user equipment (UE), a first dual connectivity (DC) configuration in a wireless communication system, the method comprising: receiving, from a network, information for validation of a DC configuration, wherein the DC configuration includes the first DC configuration and a second DC configuration; determining whether or not the first DC configuration is valid in a radio resource control (RRC) resume procedure, based on the information for validation of the DC configuration; based on the first DC configuration that is valid, keeping the first DC configuration in an RRC resume procedure; releasing the second DC configuration before initiating the RRC resume procedure; and transmitting, to the network, a message for RRC resume request which includes information regarding whether or not the first DC configuration is kept.
In wireless communication systems, user equipment (UE) often operates in dual connectivity (DC) mode, where it maintains simultaneous connections with multiple network nodes (e.g., a master and secondary node) to improve data throughput and reliability. However, during radio resource control (RRC) resume procedures, such as when transitioning from an idle or inactive state to an active state, the UE may need to validate and retain or release DC configurations to ensure proper network synchronization. This invention addresses the challenge of efficiently managing DC configurations during RRC resume procedures to maintain connectivity without unnecessary signaling overhead. The method involves a UE receiving validation information for a DC configuration, which includes both a first and second DC configuration. The UE determines the validity of the first DC configuration during the RRC resume procedure based on the received information. If the first DC configuration is valid, the UE retains it while releasing the second DC configuration before initiating the RRC resume procedure. The UE then transmits an RRC resume request message to the network, including an indication of whether the first DC configuration was kept. This approach ensures seamless connectivity by validating and retaining only the necessary DC configurations, reducing signaling complexity and improving efficiency in wireless communication systems.
2. The method of claim 1 , wherein the information for validation of the DC configuration includes at least one cell in which the first DC configuration is valid.
3. The method of claim 2 , wherein the first DC configuration is valid in the RRC resume procedure, based on the UE that is in the at least one cell in which the first DC configuration is valid.
This invention relates to wireless communication systems, specifically to dual connectivity (DC) configurations in radio resource control (RRC) resume procedures. The problem addressed is ensuring that a user equipment (UE) can efficiently resume communication using a valid dual connectivity configuration when transitioning from an idle or inactive state to an active state. The method involves determining whether a first dual connectivity configuration is valid for a UE during an RRC resume procedure. The validity of the configuration is assessed based on the UE's current location, specifically whether it is within at least one cell where the first DC configuration is applicable. If the UE is in such a cell, the first DC configuration is deemed valid and can be used for the resume procedure. This ensures that the UE can maintain or reestablish dual connectivity with multiple network nodes without unnecessary signaling or configuration changes, improving efficiency and reducing latency. The method may also involve evaluating additional conditions, such as the UE's capability or network policies, to further confirm the validity of the first DC configuration. If the configuration is invalid, the UE may request a new configuration or fall back to a single connectivity mode. This approach optimizes resource usage and enhances the reliability of dual connectivity in wireless networks.
4. The method of claim 2 , wherein the first DC configuration is an entire master cell group (MCG) configuration, and the second DC configuration is an entire secondary cell group (SCG) configuration.
5. The method of claim 2 , wherein the first DC configuration is an entire SCG configuration, and the second DC configuration is an entire MCG configuration.
6. The method of claim 2 , wherein the first DC configuration is a dual connectivity configuration for at least one cell in a MCG or a SCG.
7. The method of claim 1 , wherein the information for validation of the DC configuration includes a cell quality threshold in which the first DC configuration is valid.
A system and method for validating distributed computing (DC) configurations in a networked environment addresses the challenge of ensuring optimal performance and reliability in distributed systems. The invention provides a validation mechanism that evaluates DC configurations based on predefined criteria to determine their suitability for deployment. A key aspect involves assessing cell quality metrics, such as signal strength, latency, or error rates, to ensure the configuration meets performance thresholds. The validation process compares the measured cell quality against a predefined threshold to determine if the configuration is valid. If the measured quality falls below the threshold, the configuration is deemed invalid and may be adjusted or discarded. This approach helps maintain system stability and efficiency by preventing the deployment of suboptimal configurations. The method can be applied to various distributed computing scenarios, including cloud computing, edge computing, and networked data centers, where reliable and high-performance configurations are critical. By incorporating cell quality thresholds, the system ensures that only configurations meeting specified performance standards are implemented, reducing the risk of system failures and performance degradation.
8. The method of claim 7 , wherein the first DC configuration is valid in the RRC resume procedure, based on quality of a cell to which the UE belongs that is greater than or equal to the cell quality threshold.
9. The method of claim 8 , wherein the first DC configuration is one of an entire MCG configuration, an entire SCG configuration, a DC configuration for at least one SCell in a MCG or a DC configuration for at least one cell in a SCG.
10. The method of claim 7 , wherein the first DC configuration is an entire MCG configuration, and the cell quality threshold is for the entire MCG configuration, and wherein the entire MCG configuration is valid in the RRC resume procedure, based on quality of all cells in a MCG that is greater than or equal to the cell quality threshold.
11. The method of claim 1 , wherein the information for validation of the DC configuration includes a validity time duration in which the DC configuration is valid.
12. The method of claim 11 , wherein the first DC configuration is valid in the RRC resume procedure, during the validity time duration.
13. The method of claim 1 , further comprising: based on the first DC configuration that is not valid, releasing the first DC configuration and the second DC configuration before initiating the RRC resume procedure.
14. A user equipment (UE) configured to operate in a wireless communication system, the UE comprising: a transceiver; a processor; and a computer-readable memory operably connected to the processor and storing instructions that, based on being executed by the processor, perform operations comprising: receiving, from a network through the transceiver, information for validation of a dual connectivity (DC) configuration, wherein the DC configuration includes a first DC configuration and a second DC configuration; determining whether or not the first DC configuration is valid in a radio resource control (RRC) resume procedure, based on the information for validation of the DC configuration; based on the first DC configuration that is valid, keeping the first DC configuration in an RRC resume procedure; releasing the second DC configuration before initiating the RRC resume procedure; and transmitting, to the network through the transceiver, a message for RRC resume request which includes information regarding whether or not the first DC configuration is kept.
15. The UE of claim 14 , wherein the information for validation of the DC configuration includes at least one cell in which the first DC configuration is valid.
16. The UE of claim 15 , wherein the first DC configuration is valid in the RRC resume procedure, based on the UE that is in the at least one cell in which the first DC configuration is valid.
17. The UE of claim 15 , wherein the first DC configuration is an entire master cell group (MCG) configuration, and the second DC configuration is an entire secondary cell group (SCG) configuration.
This invention relates to wireless communication systems, specifically to dual connectivity (DC) configurations in user equipment (UE) for managing radio resource control (RRC) connections. The problem addressed is the need for efficient and flexible configuration of dual connectivity, where a UE communicates with both a master cell group (MCG) and a secondary cell group (SCG) to improve data throughput and reliability. The UE is configured to receive and apply two distinct DC configurations: a first configuration for the entire MCG and a second configuration for the entire SCG. The MCG configuration includes all necessary parameters for the master node (e.g., a master eNodeB or gNodeB), such as cell identity, radio link monitoring, and bearer setup. The SCG configuration similarly includes all parameters for the secondary node (e.g., a secondary eNodeB or gNodeB), such as cell identity, radio link monitoring, and bearer setup. The UE applies these configurations to establish and maintain dual connectivity, allowing simultaneous communication with both nodes. This approach ensures seamless handover and load balancing between the MCG and SCG, improving overall network performance and user experience. The invention optimizes resource allocation and reduces signaling overhead by managing the entire MCG and SCG configurations as distinct but coordinated entities.
18. The UE of claim 15 , wherein the first DC configuration is an entire SCG configuration, and the second DC configuration is an entire MCG configuration.
19. The UE of claim 15 , wherein the first DC configuration is a dual connectivity configuration for at least one cell in a MCG or a SCG.
20. The UE of claim 14 , wherein the information for validation of the DC configuration includes a cell quality threshold in which the first DC configuration is valid.
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April 6, 2021
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